Website Cast: How to Cast Any Website to Your TV
Website cast is the fastest way to get a video from a webpage onto your TV screen. Instead of squinting at your phone or fumbling with cables, you can stream video from any website directly to your television over Wi-Fi. This guide explains how website casting actually works under the hood, why most people do it wrong, and how to set it up in under two minutes.
What Website Cast Actually Means
When people say "website cast," they mean sending a video that's playing on a website to their TV. It sounds simple, but there are two completely different ways to do it — and the method you choose determines whether you get a crisp, smooth picture or a blurry, stuttering mess.
The Wrong Way: Screen Mirroring / Tab Casting
Most built-in casting features (like Chrome's "Cast tab") work by taking a live screenshot of your screen 30 times per second, compressing those frames into a video feed, and streaming that feed to your TV. Your TV is essentially watching a screen recording of your phone — not the actual video.
The result: resolution drops to 720p or lower, there's a 1-2 second lag, your battery drains fast because your screen has to stay on, and audio often drifts out of sync. It works in a pinch, but it's a workaround, not a real solution.
The Right Way: Direct Video Stream Casting
A dedicated web casting app like CastBrowser takes a fundamentally different approach. It scans the webpage, finds the actual video stream URL (the same URL the website uses to play the video), and sends that URL directly to your TV. Your TV then fetches and plays the video itself — natively, at full quality.
This is how streaming apps like Netflix and YouTube work on your TV. The TV handles playback, so you get the original resolution (up to 4K), zero lag, perfect audio sync, and your phone battery barely moves because it's just acting as a remote control.
How to Cast a Website to Your TV (Step-by-Step)
Here's how to website cast any video to your TV using the direct stream method. The whole process takes about two minutes the first time, and seconds after that.
Get a Website Casting App
Download CastBrowser for free from the Google Play Store or the Apple App Store. No account, no subscription — every feature is free from day one. CastBrowser is a full web browser with built-in video detection and casting, so it replaces both your browser and your cast app.
Connect Phone and TV to the Same Wi-Fi
Website casting works over your local network. Your phone sends the video URL to your TV, and your TV fetches the video directly from the internet. Both devices need to be on the same Wi-Fi for this handshake to happen. If your router has separate 2.4 GHz and 5 GHz networks, make sure both devices are on the same one.
Browse to Any Website
Open CastBrowser and type in any URL — a streaming site, news site, social media, sports, educational platform, anything. The built-in browser supports tabs, bookmarks, and history, so it works just like Chrome or Safari. There's also a built-in ad blocker that blocks over 234,000 known ad domains, keeping pages clean and fast.
Videos Are Detected Automatically
As the page loads, CastBrowser scans for every video stream on the page — including formats most apps miss like HLS (M3U8), DASH (MPD), MKV, and WebM alongside standard MP4. When videos are found, you'll see a notification with the number of detected streams. No manual inspection needed.
Cast to Your TV
Tap the cast icon, pick your TV or streaming device from the list, and the video starts playing on your TV at full quality. Use the on-screen remote to pause, seek, adjust volume, or load subtitles. Your phone is free to do other things — the TV handles playback independently.
Why Most Website Casting Fails (And How to Fix It)
If you've tried to cast a website to your TV before and the quality was bad, you're not alone. Here are the three most common reasons website casting goes wrong — and what to do instead.
Problem: Blurry or Pixelated Video
Why it happens: You're using screen mirroring or tab casting, which compresses your phone screen into a low-resolution video feed before sending it to your TV. The original 1080p video gets re-encoded to 720p or worse.
Fix: Use a direct-stream cast app like CastBrowser. It sends the original video URL to your TV, so the TV plays the video at its native resolution — up to 4K if the source supports it.
Problem: Audio Out of Sync or Delayed
Why it happens: Screen mirroring encodes video and audio separately and streams them in real-time. Any network hiccup causes the two streams to drift apart. The longer you watch, the worse it gets.
Fix: Direct video casting doesn't have this problem. The TV receives a single video file with audio and video already synchronized, just like streaming from a built-in TV app.
Problem: Battery Drains While Casting
Why it happens: Screen mirroring requires your phone screen to stay on and actively encode video. Your phone is doing the work of a live video encoder while also running the browser.
Fix: With CastBrowser, once you start casting, your phone hands off the video URL to the TV and steps back. The TV fetches the video directly from the internet. Your phone just acts as a remote — screen off, minimal battery usage.
Supported TVs and Streaming Devices
CastBrowser supports six casting protocols, which means it works with virtually every TV and streaming device on the market. Here's the full breakdown:
Not sure which protocol your TV uses? CastBrowser auto-discovers all compatible devices on your network. Just open the app, tap the cast icon, and your TV will appear in the list if it supports any of these six protocols.
Website Cast vs. Screen Mirroring vs. HDMI Cable
There are three main ways to get website content onto your TV. Here's an honest comparison so you can pick the right approach for your setup:
Website casting with a direct-stream app gives you the quality of an HDMI cable with the convenience of wireless. Screen mirroring is the fallback option when nothing else works. HDMI is reliable but requires physical cables and adapters.
What Websites Can You Cast?
CastBrowser's video detection works on virtually any website. The app detects over 20 video formats including MP4, HLS (M3U8), DASH (MPD), MKV, WebM, AVI, FLV, MOV, and more. Here are popular categories people use for online video casting for TV:
Streaming Sites
Free streaming platforms, web-based movie sites, and TV show archives. CastBrowser detects HLS and DASH streams that most other apps miss entirely.
News & Live Streams
Live news feeds, press conferences, and event streams from CNN, BBC, Reuters, and other outlets. Cast live content to your TV as it happens.
Social Media Videos
Videos from Facebook, Twitter/X, Reddit, and other social platforms. Browse social feeds in CastBrowser and cast any video you find to the big screen.
Education & Courses
Online lectures, tutorial videos, and course material from educational platforms. Perfect for study sessions on a larger display.
Sports & Highlights
Live sports streams, game replays, and highlight clips. Cast them to your TV for the full big-screen sports experience.
Podcasts & Audio
CastBrowser also detects audio streams. Cast podcasts and web-based music players to your TV or connected speakers.
Advanced Features for Power Users
Website casting with CastBrowser goes well beyond basic play/pause. If you cast frequently, these features will save you real time:
- Resume playback — CastBrowser remembers where you stopped. Come back days later and pick up right where you left off, even on a different TV.
- Subtitle support — Load subtitle tracks from the video source or external files. Subtitles display on your TV, not just your phone.
- Background casting — Start a cast, lock your phone, and the video keeps playing on your TV. Your phone stays free for calls, messages, or browsing.
- Local media casting — Beyond websites, you can also cast video files stored on your phone to your TV using the same app.
- Ad blocker — A built-in ad blocker with 234,000+ blocked domains keeps websites clean before you even hit play. No extensions needed.
- 50+ languages — The app interface is available in over 50 languages, so you can use CastBrowser in your preferred language.
Website Casting Troubleshooting
Running into issues? Here are quick fixes for the most common problems with web casting:
TV not showing up in the device list
Both devices must be on the same Wi-Fi network. Check that your router isn't isolating devices (some routers have "AP isolation" or "client isolation" turned on by default). Restart the app and try again.
No videos detected on the page
Some sites load videos only after you click play. Tap the play button on the website first, then check the detected videos list again. CastBrowser detects videos as they load — sometimes a few seconds after the page appears.
Video starts but stops after a few seconds
This usually means the video format needs conversion for your specific TV. In CastBrowser, try switching the delivery mode to "Always Proxy" — this routes the video through your phone's built-in relay server, which handles format conversion automatically.
Casting works on Wi-Fi but not on mobile data
Website casting requires both devices to be on the same local network. It does not work over cellular data because your TV and phone can't discover each other across different networks.
Frequently Asked Questions
What does website cast mean?
Website cast means sending video content from a website on your phone to your TV screen. A dedicated website casting app like CastBrowser detects videos on any webpage and sends the actual video stream URL to your TV for full-quality playback — no screen mirroring involved.
Can I cast any website to my TV?
Yes. CastBrowser works on virtually any website that contains video. It scans the page for video streams — including MP4, HLS (M3U8), DASH, MKV, and WebM — and lets you cast them to Roku, Fire TV, Chromecast, DLNA Smart TVs, or AirPlay devices. If the page has a playable video, CastBrowser can detect and cast it.
Is website casting free?
CastBrowser is completely free for both Android and iOS. Every feature — including all six casting protocols, the built-in ad blocker, and subtitle support — is available at no cost with no subscription or account required.
What is the difference between screen mirroring and website casting?
Screen mirroring captures your entire phone screen and streams it as a compressed video feed to your TV — resulting in lower quality, lag, and high battery drain. Website casting (used by CastBrowser) extracts the actual video URL from the webpage and sends it directly to your TV. The TV plays the video natively at full resolution while your phone acts as a remote.
Do I need a Chromecast to cast a website to my TV?
No. CastBrowser supports six protocols: Chromecast, Roku, Fire TV, DLNA, AirPlay (iOS), and a Web Receiver. Most modern Smart TVs from Samsung, LG, Sony, and others support DLNA out of the box, so you can cast websites to your TV without any additional hardware.
Why is my website cast blurry or laggy?
Blurry or laggy casting almost always means you're using screen mirroring instead of direct video casting. Screen mirroring compresses your entire display into a video feed, which drops quality significantly. Switch to CastBrowser, which sends the raw video stream URL to your TV for native, full-quality playback with no lag.
Start Casting Websites to Your TV
Download CastBrowser for free — cast any website to any TV in seconds.